Oct. i-Dec. 31, 1917 
Index 
721 
Page 
Fusarium —Continued * 
putrefaciens —continued 
description.36-38 
distribution. 35 
life history.38-39 
a. sp. 36 
parasite of Mdilotus alba .. . 39 
resemblance of Cenangium urceolaiutn to. 39 
temperature index of. 525-528 
Gainey, P. T-, and Metzler, T. F. (paper): 
Some Factors Affecting Nitrate-Nitrogen 
Accumulation in Soil.43-64 
Galactase— 
in butter.442-444 
in milk.... 443 
Gas— 
combustible, production in cattle- 
relation to carbohydrate fermentation.. 455 
relation to feed. 4SS 
hydrocyanic-acid. See Acid, hydrocyanic, 
gas. 
Genetic factors of Pisum spp., interrelation 
oi ... . 167-190 
Georgia velvet bean. See Siizolobium deer- 
ingianum. 
Geranium. See Pdargonium spp. 
Gerlaugh, P„ and Severson, B. O. (paper): 
A Statistical Study of Body Weights, 
Gains, and Measurements of Steers during 
the Fattening Period.383-394 
Germination- 
effect of hydrocyanic-add gas on.423-425 
seed stored in forest floor. 1-26 
Glanders, conglutination test for diagnosis.. 65-75 
Glomerella cingulata — 
relation of apple-scald to infection by_294-295 
temperature index of. 525-528 
Goldbeck, A. T., and Fairbank, H. S. (paper): 
Tests of a Targe-Sized Reinforced-Concrete 
Slab Subjected to Eccentric Concentrated 
Toads... 505-520 
Gossypium spp.— 
host of Tylmckus penetrans . 27,29,30 
injury caused by Tylenchus penetrans . 29,30 
Grains, small, technic in rod row tests_399-419 
Grape, wild. See Vitis spp. 
Grapevine aphis. See Maarosiphum illi- 
noisensis. 
Grass— 
effect of fungus fairy rings on. 191-246 
orchard, Rathay’s disease of, comparison 
with bacterial-blight of Hordeum spp.... 627 
western-wheat, O’Gara’s disease of, com¬ 
parison with bacterial-blight of Hordeum 
spp. 627 
Grinddia sguarrosa, effect of fungus fairy rings 
on . 237 
Ground-water table, effect of pumping from 
shallow well on.339-357 
Gutierrezia sarothrae , effect of fungus fairy 
rings on. 237,240 
Hammett, F. S., et al. (paper): Reactions of 
the Phosphorus of the Thickened Root of 
the Flat Turnip.359-370 
Page 
Harter, T. T. (paper): Podlight of the Tima 
Bean Caused by Diaporthe phaseolorum. 473-504 
Hartwell, B. T-, Hammett, F. S., and Wes- 
sels, P. H. (paper): Reactions of the Phos¬ 
phorus of the Thickened Root of the Flat 
Turnip.356*370 
Hayes, H. K. and Arny, A. C. (paper): 
Experiments in Field Technic in Rod Row 
J ^ ests .. 
Hebdoma crustuliniforme , cause of fungus 
fairy rings. I95 
Hedeoma nana, effect of fungus fairy rings 
on.. 
229-237 
Helminthosporium gramineum, disease caused 
by, resemblance to bacterial-blight of Hor¬ 
deum spp. 625-627 
Hemlock, western. See Tsuga heterophyUa. 
Hilgard, E. W., method for determination of 
hygroscopic coefficient. 150-151,152,163-164 
Hofmann, J. V. (paper): Natural Reproduc¬ 
tion from Seed Stored in the Forest Floor.. 1-26 
Hordeum spp.— 
bacterial-blight of— 
appearance. 625-627 
comparison with similar bacterial dis- 
. 627-628,629 
development. 628 
occurrence.628-631 
varietal susceptibility.629-631 
host plant of Bacterium iranslucens .625-644 
inoculation with Bacterium translucens _63 7-638 
Hordeum vulgare, technic in rod row tests.. 402-417 
Horse serum. See Serum, horse. 
Horton, J. R. (paper): Three-Tined Fig- 
Tree Borer. 371-382 
House fly. See Musca domestica. 
Humidity, effect on Jonathan-spot.291-293 
Hybridization, inheritance of wilt resistance 
of Ltnum usitatissimum through. 588-600 
Hydnum spp., causes of fairy rings. 195,196 
Hygrophorus virgineus, cause of fungus fairy 
rings. I95 
Hydrocyanic acid. See Acid, hydrocyanic. 
Hydrocyanic-acid gas. See Acid, hydro¬ 
cyanic, gas. 
Hydrocyanic-Add Gas as a Soil Fumigant 
(paper).421-436 
Hydrogen peroxid, determination of cata¬ 
lase- 
in butter by reaction with. 446 
in milk by reaction with. 446 
Hygroscopic coefficient- 
direct determination in soil. 147-165 
Hilgard’s method for determination in 
s °ri. 150, s$ij 152,163-164 
influence of— 
grinding on. IS9 
size of containers on. 159-160 
temperature on. 156-159 
time of exposure on. 156 
Indian corn. See Zea mays. 
Indian sanicle, syn. White snakeroot. 
Influence of the Age of the Cow on the Com¬ 
position and Properties of Milk and Milk 
Fat (paper).645-658 
